Hand duplicator or stamp



July 13 1926. 1,592,194

.1. M. FERRISS HAND DUPLIGATOR OR STAMP Filed April 14, 1925 awwe nto'zL L 7 dun/m4 5mm Patente July 13, 1926. I

n STATES Zl'OHN M. FERRISS, OF NEW YORK, N. Y., ASSIGNOR TO THEHABRIMAIN' NATIONAL- BANK OF THE CITY OF NEW YORK.

HAND DUPLICATOR OR STAMP.

Application filed April 14, 1925. Serial No. 23,153.

This invention relates'to hand duplicators or stamps of the type inwhich a body member with a handle is used together With'a stencil sheet,inking pad, and devices for pee sitioning and locking the said stencilsheet lid or cover.

I the flanges on the upper inside walls of the diaphragm of the device,leakage or overflow of ink from the interior of the said diaphragm.

To obtain a more positive locking of the ink pad and stencil sheet onthe perforated diaphragm I have devised an improved construction of theupper portions of the said diaphragm carrying the lugs for engagementwith the apertures in the ends of the said pad and stencil sheet.

My invention is simple and economical in construction, easy to assembleand use, and is particularly cleanly as no ink can leak or drip from itsinterior whether in or out of use.

Other advantages will appear in the following specification and in thedrawings in which Fig. 1 is a plan View.

Fig. 2 is a side view partly in section.

Fig. 3 is an end view partly in section.

Fig. 4 is an enlarged detail end view.

Fig. 5 is a view of the ink pad.

Fig. 6 is a view of the stencil sheet.

As shown, the perforated diaphragm A is of the usual curved type with abottom wall 10, side walls 11-11, end walls 13-13, and perforations12-12 in the bottom wall 10, over which the ink pad C and the stencilsheet D are. positioned. Thehorizontal rectangular flanges 1 1-14 andsimilar Vertical flanges 33-33 combine to form with the vertical upperportions of the diaphragm A a three sided'well or channel extendingentirely around the interior of the said diaphragm whereby the devicecan be laid on its sides or ends and no ink can leak or seep.

to its exterior.

To position and lock the ink pad C and to prevent any wall 23, andstencil clamps 16-16 hinged in the samev way at 18-18 are provided, theslots 39-39 in the reinforcing strips 38-38 at either end of the ink padC engaging with the bosses 27-27 on the upper exterior portion of theside walls 11-11 and the slots 40 -40 in the said reinforcing strips andthe slots 43-43 in the reinforcing strip 42 of the stencil sheet Dengaging with the bosses 28-28 arranged beneath and in staggeredrelation to the bosses 27-27.

If desired, one end of the stencil sheet D may be left free, so thatwhen the opposite end is locked onto the bosses of the diaphragm thestencil sheet may be rolled into position to obtain a snug fit withoutwrinkles. I also have found that the application of a thin sheet ofrubber 34-34 on the outer surfaces of the reinforcing strips 38-38 willact to prevent the said strips from becoming slippery from excess inkand thereby tend to permit small wrinkles to occur in the stencil sheetD after being in use for a short period of time.

It will be noted that in this construction the portions 11-11 of thediaphragm A upon which the pad clamps 15-15- and stencil clamps 16-16lock the ink pad and stencil sheet, are. slightly depressed inwardly toform the angles 32-32, so that on the exterior an increased locking gripon the said pad and stencil sheet is obtained when the clamps 15-15 and16-16 are in closed position.

In the practical use of devices of this type, the stencils arefrequently changed so that new reading may be produced, but the ink padwill last a considerable time, and therefore it is desirable that theremoval of the stencil sheet be easy of accomplishment and independentof the said ink pad. In this structure, stencil sheets may be removedand relaced without any disturbance whatsover of the ink pad. In sectionthe pad clamps 15- 15 are rectangular in shape, with slots 29-29 forengagement with the bosses 27-27 and at their free ends they are bent toform 19-19, and apertures 21-21 for engagement with the lugs 26-26 onthe end wall 13 of the diaphragm A.

In a similar manner the stencil clamps 16-16 are hinged at 18-18 and areprovided with the slots 30-30 for engagement with the bosses 28-28.These clamps also have the spring catches 2525, the finger grips 2020and the apertures 22-22 for engagement with the lugs 2(i2(5.

As is obvious, an ink tight closure 1s formed by the junction of thehorizontal top walls 15 15, the upper edges of the ink ad C and thelongitudinal edges of the lid and the longitudinal upper edges of theside walls 11-11. The horizontal top flanges of the stencil clamps 16 16extend outwardly to form a guide or register against which the materialon which the printing is to be done may be positioned to secure perfectalignment with what is cut on the stencil sheet.

The closure lid shown herewith is of the usual type with a handle 31 andis adapted to form a snug inktight interlocking on the flanges 1414: andunder the horizontal flanges on the pad clamps 15-15.

To aid the operator to determine the relative position of the cut. linesin the stencil sheet and the location in which they will appear on theprinted sheet a series of grooves 36-36 are cut in the end wall of thediaphragm A. (See Fig. 3).

The details of the inkpad C are shown in Fig. 5, the body portionthereof being indicated at 37, reinforcing strips 38-38, the rubberprotecting film 34:, and the perforations 3939 for engagement with thebosses 27-27 and the second row of perfora tions 40-10 for engagementwith the bosses 28-28 on the diaphragm A.

In a similar manner the stencil sheet I) is shown in Fig. 6, the freeend being indicated b 41, the reinforced end by 42 and 4343 eing theslots for engagement with the bosses 28-28 on the diaphragm A.

The diaphragm A is provided with the bosses 2828 on both of its sidewalls 1111 for engagement with the series of slots 40'10 at either endof the ink pad C and also to make it possible to position the stencilsheet D on either side of the diaphragm by engagement between the saidbosses 2828 and the slots 1343. It is obvious that the stencil sheet Dcould be made with the strip 42 and the slots 4343 at both ends ifdesired.

I do not desire to limit myself strictly to the preferred form shownherewith, as there are a number of other ways in which I couldaccomplish the desired result without departing from the spirit of myinvention.

I claim 1. In a duplicator the combination of the following elements; adiaphragm comprising end walls, an arcuate perforated bottom wall, sidewalls mounted on the upper longitudinal edges of the said bot,- tom walland having a plurality of bosses on their outer surfaces, and inkretaining means comprising a plurality of rectangular flanges mounted onthe upper surfaces 2. In a duplicator the combination of the followingelements; a diaphragm comprising end walls, an arcuate perforated bottomwall, vertically disposed side walls mounted on the said bottom wall andinside of the outer line thereof, a lurality of bosses 0n the outersurfaces of tlie said side walls; ink retaining means comprising aplurality of rectangular flanges mounted on the upper surfaces of thesaid side and end walls; an ink pad; a stencil sheet; pad clampingmembers; stencil clamping members; and a closure lid adapted to belocked on the upper surfaces of the said diaphragm 'by the said padclamping members.

3. In a duplicator the combination of the following elements; adiaphragm comprising end walls, an arcuate perforated bottom wall,vertically disposed side walls mounted on the said bottom wall andinside of the outer line thereof; ink retaining means comprising aplurality of rectangular flanges mounted on the upper surfaces of thesaid side and end walls; a plurality of bosses on the outer surfaces ofthe said side walls; an ink pad and stencil sheet provided with slotsadapted to engage with the said bosses; pad clamping members hingedlysecured to the said diaphragm; stencil clamping members hingedly securedto the said diaphragm; and a closure lid adapted to be locked on theupper surfaces of the said diaphragm by the said pad clamping members.

4. In a duplicator the combination of the following elements; adiaphragm comprising end walls, an arcuate perforated bottom wall,vertically disposed side walls mounted on the said bottom wall andinside of the outer line thereof; ink retaining means comprising aplurality of rectangular flanges mounted on the upper surfaces of thesaid side and end walls; a plurality of bosses on the outer surfaces ofthe said side walls; an ink pad and stencil sheet provided with slotsadapted to engage with the said bosses; pad clamping members hingedlysecured to the said diaphragm and provided with slots adapted to engagewith the said bosses on the side walls and thereby lock the ink pad inposition; stencil clamping members hingedly secured to the saiddiaphragm and provided with slots adapted to engage with the said bosseson the side walls and thereby lock the stencil sheet in position; and aclosure lid adapted to be locked on the upper surfaces of the saiddiaphragm by the said pad clamping members.

JOHN M. FERRISS.

